The Simpson Titen HD 1/2 in. x 5 in. Type 316 Stainless Steel Heavy-Duty Screw Anchor sets the standard for reliable concrete and masonry fastening in demanding, corrosive, and extreme environments. Built from Type 316 stainless steel and engineered with an innovative heat-treated carbon-steel cutting thread, this heavy-duty screw anchor delivers fast, efficient installation alongside long-lasting corrosion resistance - making it the trusted solution for structural connections exposed to salt water, chemical solutions, or persistently wet and moist conditions. Installs with an impact wrench or by hand tool using a 3/4 in. wrench, and requires no specialized drill bits, so crews can get to work without added setup time.

Key Features

• Qualified for static and seismic loading conditions - gives engineers and contractors the confidence to use this anchor in code-compliant structural and seismic applications without additional guesswork.
• Undercutting thread design - efficiently transfers load to the base material, resulting in a stronger, more secure connection in concrete and masonry substrates.
• No special drill bit required - designed to install using standard-sized ANSI tolerance drill bits, reducing tooling costs and simplifying job-site preparation.
• Hex-washer head design - eliminates the need for a separate washer and delivers a clean, finished appearance once installed.
• Innovative carbon-steel cutting thread with Type 316 stainless steel body - the minimal carbon-steel presence limits expansion forces in the base material while the stainless body resists corrosion in harsh environments, striking the right balance between cutting performance and durability.
• Type 316 stainless steel construction - the optimal material choice for applications involving salt water, marine exposure, or chemical and corrosive solutions, providing superior long-term corrosion resistance.
• Single-use design - installing the anchor one time only preserves thread integrity and maintains rated load capacity, protecting the reliability of each connection.

Why This Product

• Built for the harshest environments - Type 316 stainless steel is specifically engineered for salt water, marine, and chemically corrosive settings where standard anchors would degrade prematurely, making this the right call when long-term performance cannot be compromised.
• Seismic and static load qualified - contractors working on projects with strict structural requirements can specify this anchor with confidence, knowing it meets the performance criteria for both everyday and seismic load conditions.
• Faster installation, no extra hardware - compatibility with standard ANSI tolerance drill bits and the integrated hex-washer head mean fewer trips to the supply truck and quicker turnaround on each anchor point.
• Proven undercutting technology - the thread geometry actively cuts into concrete or masonry and locks in load transfer at the base material, delivering a mechanically sound connection that holds up under demanding structural loads.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: THD50500H6SS
• Diameter: 1/2 in.
• Length: 5 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Hex-Washer Head
• Drive / Wrench Size: 3/4 in. hex
• Installation Method: Installs with an impact wrench or by hand tool; wrench size 3/4 in.
• Recommended Fixture Hole Size: 5/8 in. to 11/16 in.
• Packaging: Packs of 20 and Cartons of 80

Approved Applications

• Concrete and masonry fastening in corrosive or extreme environments
• Installations exposed to salt water or marine environments
• Applications where chemical or corrosive solutions are present
• Static and seismic load-rated structural connections
• Wet, moist, or damp environment installations requiring enhanced corrosion resistance

Frequently Asked Questions

Can the Titen HD screw anchor be removed and reinstalled?

No. The Titen HD screw anchor is designed for one-time use only. Installing the anchor multiple times may result in excessive thread wear and reduce load capacity, which could compromise the integrity of the connection.

What type of drill bit is required to install this anchor?

No special drill bit is required. The THD50500H6SS is designed to install using standard-sized ANSI tolerance drill bits, making setup straightforward without the need for specialized tooling.

Why is Type 316 stainless steel used for this anchor?

Type 316 stainless steel is the optimal choice for applications in corrosive or extreme environments, such as those involving salt water or chemical exposure. It provides superior corrosion resistance compared to Type 304, making it ideal for demanding outdoor or industrial conditions.

How is this anchor installed, and what wrench size is needed?

The Titen HD screw anchor installs with an impact wrench or by hand tool. A 3/4 in. wrench is required. The hex-washer head design eliminates the need for a separate washer and delivers a clean finished appearance once installed.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.